If you have such a hammer that every problem looks like a nail, get yourself a spoon.

I have this joke I tell a lot. Imagine two guys on an old train in Switzerland, where you can open the windows. One guy starts ripping pieces of paper from his notebook and throwing them out the window. The other guy, looking really confused, asks him, 'Hey, what are you doing? Are you nuts?' The first guy says, 'Nuts? No way. I’m keeping elephants away.' The confused guy says, 'What elephants? There are no elephants here.' And the first guy says, 'See, it works!'

This joke isn’t just about other people. It’s about how I sometimes look at things, trying to make the world fit what I think. It’s a funny way to remember that sometimes, we need to change how we think, not just use the same old ideas for everything.